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A small body is placed on the top of a s...

A small body is placed on the top of a smooth sphere of radius R. Then the sphere is imparted a constant acceleration `w_0` in the horizontal direction and the body begins sliding down. Find:
(a) the velocity of the body relative to the sphere at the moment of break-off,
(b) the angle `theta_0` between the vertical and the radius vector drawn from the centre of the sphere to the break-off point, calculate `theta_0` for `w_0=g`.

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